001 /*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017 package org.jetbrains.jet.codegen;
018
019 import com.google.common.collect.Lists;
020 import com.intellij.openapi.vfs.VfsUtilCore;
021 import com.intellij.openapi.vfs.VirtualFile;
022 import com.intellij.psi.PsiFile;
023 import com.intellij.util.Function;
024 import com.intellij.util.containers.ContainerUtil;
025 import org.jetbrains.annotations.NotNull;
026 import org.jetbrains.annotations.Nullable;
027 import org.jetbrains.asm4.Type;
028 import org.jetbrains.jet.OutputFile;
029 import org.jetbrains.jet.OutputFileCollection;
030 import org.jetbrains.jet.codegen.state.GenerationState;
031 import org.jetbrains.jet.codegen.state.GenerationStateAware;
032 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
033 import org.jetbrains.jet.lang.psi.JetFile;
034 import org.jetbrains.jet.lang.resolve.name.FqName;
035
036 import javax.inject.Inject;
037 import java.io.File;
038 import java.util.*;
039
040 import static org.jetbrains.jet.codegen.AsmUtil.asmTypeByFqNameWithoutInnerClasses;
041 import static org.jetbrains.jet.codegen.AsmUtil.isPrimitive;
042 import static org.jetbrains.jet.lang.resolve.java.PackageClassUtils.getPackageClassFqName;
043
044 public final class ClassFileFactory extends GenerationStateAware implements OutputFileCollection {
045 @NotNull private ClassBuilderFactory builderFactory;
046
047 private final Map<FqName, PackageCodegen> package2codegen = new HashMap<FqName, PackageCodegen>();
048 private final Map<String, ClassBuilderAndSourceFileList> generators = new LinkedHashMap<String, ClassBuilderAndSourceFileList>();
049 private boolean isDone = false;
050
051 public ClassFileFactory(@NotNull GenerationState state) {
052 super(state);
053 }
054
055 @Inject
056 public void setBuilderFactory(@NotNull ClassBuilderFactory builderFactory) {
057 this.builderFactory = builderFactory;
058 }
059
060 @NotNull
061 ClassBuilder newVisitor(@NotNull Type asmType, @NotNull PsiFile sourceFile) {
062 return newVisitor(asmType, Collections.singletonList(sourceFile));
063 }
064
065 @NotNull
066 private ClassBuilder newVisitor(@NotNull Type asmType, @NotNull Collection<? extends PsiFile> sourceFiles) {
067 String outputFilePath = asmType.getInternalName() + ".class";
068 state.getProgress().reportOutput(toIoFilesIgnoringNonPhysical(sourceFiles), new File(outputFilePath));
069 ClassBuilder answer = builderFactory.newClassBuilder();
070 generators.put(outputFilePath, new ClassBuilderAndSourceFileList(answer, sourceFiles));
071 return answer;
072 }
073
074 void done() {
075 if (!isDone) {
076 isDone = true;
077 for (PackageCodegen codegen : package2codegen.values()) {
078 codegen.done();
079 }
080 }
081 }
082
083 @NotNull
084 @Override
085 public List<OutputFile> asList() {
086 done();
087 return ContainerUtil.map(generators.keySet(), new Function<String, OutputFile>() {
088 @Override
089 public OutputFile fun(String relativeClassFilePath) {
090 return new OutputClassFile(relativeClassFilePath);
091 }
092 });
093 }
094
095 @Override
096 @Nullable
097 public OutputFile get(@NotNull String relativePath) {
098 if (generators.containsKey(relativePath)) return new OutputClassFile(relativePath);
099
100 return null;
101 }
102
103 public String createText() {
104 StringBuilder answer = new StringBuilder();
105
106 for (OutputFile file : asList()) {
107 answer.append("@").append(file.getRelativePath()).append('\n');
108 answer.append(file.asText());
109 }
110
111 return answer.toString();
112 }
113
114 public PackageCodegen forPackage(final FqName fqName, final Collection<JetFile> files) {
115 assert !isDone : "Already done!";
116 PackageCodegen codegen = package2codegen.get(fqName);
117 if (codegen == null) {
118 ClassBuilderOnDemand onDemand = new ClassBuilderOnDemand() {
119 @NotNull
120 @Override
121 protected ClassBuilder createClassBuilder() {
122 return newVisitor(asmTypeByFqNameWithoutInnerClasses(getPackageClassFqName(fqName)), files);
123 }
124 };
125 codegen = new PackageCodegen(onDemand, fqName, state, files);
126 package2codegen.put(fqName, codegen);
127 }
128
129 return codegen;
130 }
131
132 public ClassBuilder forClassImplementation(ClassDescriptor aClass, PsiFile sourceFile) {
133 Type type = state.getTypeMapper().mapClass(aClass);
134 if (isPrimitive(type)) {
135 throw new IllegalStateException("Codegen for primitive type is not possible: " + aClass);
136 }
137 return newVisitor(type, sourceFile);
138 }
139
140 public ClassBuilder forLambdaInlining(Type lambaType, PsiFile sourceFile) {
141 if (isPrimitive(lambaType)) {
142 throw new IllegalStateException("Codegen for primitive type is not possible: " + lambaType);
143 }
144 return newVisitor(lambaType, sourceFile);
145 }
146
147 @NotNull
148 public ClassBuilder forPackagePart(@NotNull Type asmType, @NotNull PsiFile sourceFile) {
149 return newVisitor(asmType, sourceFile);
150 }
151
152 @NotNull
153 public ClassBuilder forTraitImplementation(@NotNull ClassDescriptor aClass, @NotNull GenerationState state, @NotNull PsiFile file) {
154 return newVisitor(state.getTypeMapper().mapTraitImpl(aClass), file);
155 }
156
157 private static Collection<File> toIoFilesIgnoringNonPhysical(Collection<? extends PsiFile> psiFiles) {
158 List<File> result = Lists.newArrayList();
159 for (PsiFile psiFile : psiFiles) {
160 VirtualFile virtualFile = psiFile.getVirtualFile();
161 // We ignore non-physical files here, because this code is needed to tell the make what inputs affect which outputs
162 // a non-physical file cannot be processed by make
163 if (virtualFile != null) {
164 result.add(new File(virtualFile.getPath()));
165 }
166 }
167 return result;
168 }
169
170 private final class OutputClassFile implements OutputFile {
171 final String relativeClassFilePath;
172
173 OutputClassFile(String relativeClassFilePath) {
174 this.relativeClassFilePath = relativeClassFilePath;
175 }
176
177 @NotNull
178 @Override
179 public String getRelativePath() {
180 return relativeClassFilePath;
181 }
182
183 @NotNull
184 @Override
185 public List<File> getSourceFiles() {
186 ClassBuilderAndSourceFileList pair = generators.get(relativeClassFilePath);
187 if (pair == null) {
188 throw new IllegalStateException("No record for binary file " + relativeClassFilePath);
189 }
190
191 return ContainerUtil.mapNotNull(
192 pair.sourceFiles,
193 new Function<PsiFile, File>() {
194 @Override
195 public File fun(PsiFile file) {
196 VirtualFile virtualFile = file.getVirtualFile();
197 if (virtualFile == null) return null;
198
199 return VfsUtilCore.virtualToIoFile(virtualFile);
200 }
201 }
202 );
203 }
204
205 @NotNull
206 @Override
207 public byte[] asByteArray() {
208 return builderFactory.asBytes(generators.get(relativeClassFilePath).classBuilder);
209 }
210
211 @NotNull
212 @Override
213 public String asText() {
214 return builderFactory.asText(generators.get(relativeClassFilePath).classBuilder);
215 }
216
217 @NotNull
218 @Override
219 public String toString() {
220 return getRelativePath() + " (compiled from " + getSourceFiles() + ")";
221 }
222 }
223
224 private static final class ClassBuilderAndSourceFileList {
225 private final ClassBuilder classBuilder;
226 private final Collection<? extends PsiFile> sourceFiles;
227
228 private ClassBuilderAndSourceFileList(ClassBuilder classBuilder, Collection<? extends PsiFile> sourceFiles) {
229 this.classBuilder = classBuilder;
230 this.sourceFiles = sourceFiles;
231 }
232 }
233
234 public void removeInlinedClasses(Set<String> classNamesToRemove) {
235 for (String classInternalName : classNamesToRemove) {
236 generators.remove(classInternalName + ".class");
237 }
238 }
239 }